I have a Noco Genius unit. It's not the best, but it's well-made and charges via USB. It also works as advertised, but I wish the controls were less alien pictographs and more descriptive text. Picked mine up at Batteries Plus because I needed something that day; not because I was particularly interested in the manufacturer.
If I were to sit down and make a thorough decision before the purchase, though, I'd probably be looking hard at the Antigravity Micro Start.

We have a Noco Genius at work.
In a shop environment we kill jump boxes quick if they aren't good ones.
The Noco has been working for about 6 months now and has been abused a fair amount, dropped pretty good at least once as I see the case is tweaked. Its never charged properly, and the override gets used way too often.
It also gets left on vehicles while turned on, sometimes with them running for way way longer than the 15 seconds or so recommended in the manual.
It has also been used to pull in vehicles without batteries at all - not supposed to do that either.
Price was ok at around $150.
Pretty sure it would last a diy person for years, especially if they took care of it.
Only a couple of negatives, it takes a long time to charge - no fast charge, and the cables could be a little longer.
Harbor freight has that new Lithium Iron jump pack (yes IRON) that's sold under the Viking name I think. So far people have positive things to say about it, but you are approaching the cost of a well known brand name depending on what size you actually need.
As the title wrote, I need a portable battery jump starter. But I am confused to choose which brand. How can I choose a better one? Which brand do you use now?
See if any of the Clore brands are available where you are. The most popular brand under the Clore company is Jump & Carry, usually abbreviated to JNC. Their most popular model is the JNC660, it's a real workhorse and can be found in most professional shops. It can usually be had here in the States for around $120USD. There's simply not another major manufacturer of jump boxes out there that's really taken seriously.
Of course the lithium-ion jumpers are making headway and have their advantages, mostly size and weight. I don't know a lot about them, and don't fully believe in them just yet, especially in cold weather. Noco brand seems to be decent quality and are popular, but for a little more money the Anti-Gravity Batteries brand seems to be the front-runner in quality and real world output.
I use a Walmart brand li-ion jump booster. Used it a few times when it was just above freezing and worked okay on a v6 4l engine. Follow instructions exactly and get one that's rated a bit bigger than your engine since usually the first jump never works for me, second attempt always worked though and the battery is rated for my engine size.
I bought the 3-1 portable power pack jump starter from Harbor Freight when it was on sale for ~$25
It did work one time to start the mower. Never worked again after that.![]()
I have a Noco Genius unit. It's not the best, but it's well-made and charges via USB. It also works as advertised, but I wish the controls were less alien pictographs and more descriptive text. Picked mine up at Batteries Plus because I needed something that day; not because I was particularly interested in the manufacturer.
If I were to sit down and make a thorough decision before the purchase, though, I'd probably be looking hard at the Antigravity Micro Start.
If you are referring to the small lithium jump packs, instead of the older style, big jump box - one of the best / better names you can buy is " Antigravity ".. just search "Antigravity jump pack" on Amazon..
Depends on your needs. If you just want an emergency jump start to carry around in your car, the Li-ion ones work great. Small, easy to pack and can be used to charge electronic devices. But, if you want a unit to use on a continuous basis for starting vehicles under less than ideal conditions ie. extreme cold, etc., get a regular battery booster. IMHO
Cheers
Steve
Those Antigravity packs have a ton of Amazon reviews complaining of bad/swelling batteries
I had to take a look at the reviews to see what you were talking about...
To be fair, if you had read the reviews showing the split batteries, then you would have also realized that these were 'knockoffs' being sold by a third party (funny that you left that part out)
"seller SHUN TECH is selling fake antigravity battery XP-10"
Here is an example that someone posted. The back of the knockoff is glossy while the real AntiGravity battery isn't
Also the reason I didn't get an xp-10 amazon had the best price, but when I called anti grav they said they did not warranty any from amazon because they could be a fake. So seeing that I went with the noco gb150 and also the 150 was the largest I could find and I wanted that for my duramax. Seeing how they couldn't even recommend a seller on ebay that was authorized I was done with them. I think the noco seems like it is built better and I have one of their chargers as well and like it.
I called Anti Gravity (xp-10) yesterday. Phone was answered in less than 5 rings by a real person. We talked about the fake/knock off batteries and he told me that they do sell to Amazon and their products are warrantied if you buy from them. (They have started putting a sticker with a serial number on the back of the batteries to help). If you actually go to their website you will probably get a promo code - I think it was 'newmember' which will get you 12% off your first order which the price is then pretty close to Amazon's if your concerned about buying from Amazon
https://shop.antigravitybatteries.com/
Harbor freight has that new Lithium Iron jump pack (yes IRON) that's sold under the Viking name I think. So far people have positive things to say about it, ...
This is what we use at work. It gets abused day in and day out. We have had zero issues in the winter also.I would 2nd this
I have the XP-10 version
https://www.amazon.com/gp/product/B00MQ5Z5F2/?tag=atomicindus08-20
Consumer reports tested 10 of them
http://www.consumerreports.org/cro/jump-starters/buying-guide
The Antigravity Batteries XP-10 was clearly the best of the bunch, with two USB ports, several laptop connection options, and best-in-test device charging capacity.
It comes in a zippered binder with a bunch of accessories - you can charge just about any cell phone or tablet with it
Probably the "best bang for the buck" !
Li-Ion batteries hold a charge for a long time, much longer than NiCad, NiMH or even lead acid. They do not do well, in very cold temps.I tend not to over think purchases I will only use in a blue moon.
Go buy a expensive $100 Ion jump starter and forget to keep it charged...it is just as useless and the $40 one you bought.
Li-Ion batteries hold a charge for a long time, much longer than NiCad, NiMH or even lead acid. They do not do well, in very cold temps.